340567950721 has 2 divisors, whose sum is σ = 340567950722. Its totient is φ = 340567950720.

The previous prime is 340567950707. The next prime is 340567950727. The reversal of 340567950721 is 127059765043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 272504880400 + 68063070321 = 522020^2 + 260889^2 .

It is a cyclic number.

It is not a de Polignac number, because 340567950721 - 2²¹ = 340565853569 is a prime.

It is not a weakly prime, because it can be changed into another prime (340567950727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170283975360 + 170283975361.

It is an arithmetic number, because the mean of its divisors is an integer number (170283975361).

Almost surely, 2^340567950721 is an apocalyptic number.

It is an amenable number.

340567950721 is a deficient number, since it is larger than the sum of its proper divisors (1).

340567950721 is an equidigital number, since it uses as much as digits as its factorization.

340567950721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1587600, while the sum is 49.

The spelling of 340567950721 in words is "three hundred forty billion, five hundred sixty-seven million, nine hundred fifty thousand, seven hundred twenty-one".